Working in the office is as bad as smoking, study finds - Office workers must exercise for an hour a day to combat the "deadly" risk of modern working life, a major study has found.Sitting for at least eight hours a day could increase the risk of premature death by up to 60 per cent, the study of more than one million adults published in The Lancet found, with sedentary lifestyles now posing as great a threat to public health as smoking and causing more deaths than obesity.From Nony